Looking forward to pics. Don't know anything about SBGW035 but it looks beautiful.
AnthonyBooking for the museum can be done over the phone. You can give them a call and arrange a time that is suitable. Remember that the museum is closed on public holidays, Mondays and the Tuesdays after public holidays.
The museum website and booking information can be found at http://museum.seiko.co.jp/en/
If you are ever in Tokyo it is definitely worth taking the time to visit.